How severe is CVE-2021-3991?

CVE-2021-3991 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-3991 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3991?

CVE-2021-3991 affects Dolibarr Dolibarr Erp/crm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3991?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2021-3991 have an EU (EUVD) identifier?

Yes. CVE-2021-3991 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3322.

When was CVE-2021-3991 published?

CVE-2021-3991 was published on 2024-11-15 and last updated on 2026-06-17.

CVE-2021-3991

CVE-2021-3991 is a medium-severity vulnerability in Dolibarr Dolibarr Erp/crm with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-3322
Weakness: CWE-639
Affected product: Dolibarr Dolibarr Erp/crm
Published: 2024-11-15
Last modified: 2026-06-17

Description

An Improper Authorization vulnerability exists in Dolibarr versions prior to the 'develop' branch. A user with restricted permissions in the 'Reception' section is able to access specific reception details via direct URL access, bypassing the intended permission restrictions.

Frequently asked questions

What is CVE-2021-3991?: An Improper Authorization vulnerability exists in Dolibarr versions prior to the 'develop' branch. A user with restricted permissions in the 'Reception' section is able to access specific reception details via direct URL access, bypassing the intended permission restrictions.
How severe is CVE-2021-3991?: CVE-2021-3991 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-3991 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3991?: CVE-2021-3991 affects Dolibarr Dolibarr Erp/crm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3991?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-3991 have an EU (EUVD) identifier?: Yes. CVE-2021-3991 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3322.
When was CVE-2021-3991 published?: CVE-2021-3991 was published on 2024-11-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dolibarr:dolibarr_erp\/crm:*:*:*:*:*:*:*:*

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